Correct carburetor selection can make the job of fine tuning the air/fuel mixture a easier job, my favorite performance replacement carburetors is the for a mild engine a Quadrajet, Edelbrock ...

The ideal mixture of 14.7:1, air and gasoline respectively by mass, is known as the stoichiometric ratio. That is, 14.7 lb. of air is needed to burn 1 lb. of gasoline, with no leftover air nor ...

Sometimes you want to lean the fuel/air mixture for best power—a high density altitude situation, such as taking off from a remote mountain airstrip, is a good example.

If your air multiplier converts that into 10 kg/s at 1 m/s, that is 100% efficient at momentum transfer, but the power in that resulting air stream is just 5 watts. That’s a lousy 10% efficiency.